Power Systems
To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine.

  superheater.
  economizer.
  air preheater.
  ash handling point.

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Power Systems
An impulse turbine

 is most suited for low head and high discharge power plants.
  operates by initial complete conversion to kinetic energy.
 always operates submerged.
 makes use of a draft tube.

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